2,402 research outputs found

    THE VALUATION OF LABELLING ATTRIBUTES IN A WINE MARKET

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    The values which market participants place on labelling information in the British wine retail market are investigated using a hedonic framework. The results suggest a near asymmetric evaluation of labelling attributes between wines from the 'New World' (Australia) and wines from the 'Old World' (France). The benefits of studying the valuation of attribute information within the hedonic framework are demonstrated in two steps. First, the revenue impact of shifts in attributes is examined at the retail level. Second, the welfare impact of changes in the attribute choice set facing consumers is considered.Marketing,

    A Comparative Analysis of US and Canadian Consumers' Perceptions Towards BSE Testing and the use of GM Organisms in Beef Production: Evidence from a Choice Experiment

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    Replaced with revised version of paper 07/24/07.choice experiments, multinomial logit, beef labeling, Livestock Production/Industries, D12, L66, C35,

    French wines on the decline? Econometric evidence from Britain

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    French wines, differentiated by geographic origin, served for many decades as a basis for the French success in the British wine market. However in the early 1990s, market share began to decline. This article explores the values that market participants placed on labelling information on French wines in Britain in 1994. Results from a parametric hedonic approach indicate that both the lack of a consistently positive valuation of varietal wines and the low valuation of wines with geographical appellation help to explain the overall decline of France's role in the British wine market

    Regional Food Clusters and Government Support for Clustering: Evidence for a ‘Dynamic Food Innovation Cluster’ in Alberta, Canada?

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    This paper analyzes government support for networking and regional cluster growth in the food sector. It is, to the best of our knowledge, the first paper to provide a literature review of studies on regional food clusters, focusing on key features that characterize successful regional food clusters. The review compares key characteristics of such clusters with characteristics of clusters from other industrial sectors. The insights from these studies on clustering success and the role of government are contrasted with empirical evidence on government support for clustering in the Canadian food sector, specifically in the province of Alberta. The empirical evidence is based on two small industry surveys, one conducted in March 2005, and the second in August 2009. Considering this empirical evidence, we have little support for an emerging food (innovation) cluster in Alberta, and little evidence for effective government support toward food cluster development in Alberta.location-based clustering, food clusters, networks, innovation, government support, Alberta, Canada, Industrial Organization, Research and Development/Tech Change/Emerging Technologies, R11, L32, L38, O32, O38, Q13,

    Governance reform of German food safety regulation: Cosmetic or real?

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    A series of food-related crises, most notably mad cow disease in Britain, farmer protests in France against American hormone-treated beef, and the European Union's banning of genetically modified food has turned the regulation of food safety in Europe into a crucible for issues of institutional trust, legitimacy, and effectiveness. What's the Beef? examines European food safety regulation at the national, European, and international levels as a case of "contested governance" a syndrome of policymaking and political dispute in which not only policy outcomes but also the fundamental legitimacy of existing institutional arrangements are challenged. The discussions of European food safety regulation in What's the Beef? open into consideration of broader issues, including the growing importance of multilevel regulation (and the possibility of disagreements among different levels of authority), the future of European integration, discontent over trade globalization, the politicization of risk assessment and regulatory science, the regulation of biotechnology, the shifting balance between public and private regulation, agricultural protectionism, and the "transatlantic divide." After addressing the historical, social, and economic context of European food safety regulation, the book examines national efforts at food safety reform in France, Britain, and Germany and such regional efforts as the creation of the European Food Authority. The book also looks at the international dimensions of European food safety regulation, discussing the conflicts between EU safety rules and World Trade Organization rulings that occur because EU rules are more risk averse ("precautionary") than those of its trading partners, including the United States

    Collisional Quenching at Ultralow Energies: Controlling Efficiency with Internal State Selection

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    Calculations have been carried out for the vibrational quenching of excited H2_2 molecules which collide with Li+^+ ions at ultralow energies. The dynamics has been treated exactly using the well known quantum coupled-channel expansions over different initial vibrational levels. The overall interaction potential has been obtained from the calculations carried out earlier in our group using highly correlated ab initio methods. The results indicate that specific features of the scattering observables, e.g. the appearance of Ramsauer-Townsend minima in elastic channel cross sections and the marked increase of the cooling rates from specific initial states, can be linked to potential properties at vanishing energies (sign and size of scattering lengths) and to the presence of either virtual states or bound states. The suggestion is made that by selecting the initial state preparation of the molecular partners, the ionic interactions would be amenable to controlling quenching efficiency at ultralow energies

    Beef Labeling After BSE: Do Consumers Care about BSE Testing and GMO Labeling? Evidence from Canada and the US

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    Following the May 2003 Canadian BSE case, food safety issues have become even more prominent to policymakers and consumers. In both Canada and the US, governments and industry have responded with a variety of quality assurance, traceability and labeling schemes. However, there is little information available on the extent to which consumer perceptions differ regionally across North America towards labeling schemes. This paper attempts to fill this gap, by providing results on a variety of beef labeling strategies from choice experiments that were conducted in Alberta (Canada) and Montana (US). The analysis focuses on consumers' perceptions towards negative voluntary labeling with regard to BSE testing, genetically modified organisms (GMO) and the use of growth hormones in beef production. We find that four years after the first BSE case emerged in North America, consumers are willing to pay most to avoid risks associated with BSE. Montana and Alberta consumers are found not to be significantly heterogeneous in their preferences.Choice experiments, Multinomial logit, Beef labeling, Food Consumption/Nutrition/Food Safety, D12, L66, C35,

    Neutral and ionic dopants in helium clusters: interaction forces for the Li2(a3Σu+)HeLi_2(a^3\Sigma_u^+)-He and Li2+(X2Σg+)HeLi_2^+(X^2\Sigma_g^+)-He

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    The potential energy surface (PES) describing the interactions between Li2(1Σu+)\mathrm{Li_{2}(^{1}\Sigma_{u}^{+})} and 4He\mathrm{^{4}He} and an extensive study of the energies and structures of a set of small clusters, Li2(He)n\mathrm{Li_{2}(He)_{n}}, have been presented by us in a previous series of publications [1-3]. In the present work we want to extend the same analysis to the case of the excited Li2(a3Σu+)\mathrm{Li_{2}}(a^{3}\Sigma_{u}^{+}) and of the ionized Li2+(X2Σg+)_{2}^{+}(X^{2}\Sigma_{g}^{+}) moiety. We thus show here calculated interaction potentials for the two title systems and the corresponding fitting of the computed points. For both surfaces the MP4 method with cc-pV5Z basis sets has been used to generate an extensive range of radial/angular coordinates of the two dimensional PES's which describe rigid rotor molecular dopants interacting with one He partner

    The Effect of Expansion on Mass Entrainment and Stability of Super-Alfv\'enic Jets

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    We extend investigations of mass entrainment by jets, which previously have focused on cylindrical supermagnetosonic jets and expanding trans-Alfv\'enic jets, to a set of expanding supermagnetosonic jets. We precess these jets at the origin to excite the helical mode of the Kelvin-Helmholtz (or KH) instability, in order to compare the results with predictions from linear stability analysis. We analyze this simulation set for the spatial development of magnetized mass, which we interpret as jet plus entrained, initially unmagnetized external mass. As with the previous simulation sets, we find that the growth of magnetized mass is associated with the growth of the KH instability through linear, nonlinear, and saturated stages and with the expansion of magnetized material in simulated observations of the jet. From comparison of measured wavelengths and wave speeds with the predictions from linear stability analysis, we see evidence that the KH instability is the primary cause for mass entrainment in these simulations, and that the expansion reduces the rate of mass entrainment. This reduced rate can be observed as a somewhat greater distance between the two transition points separating the three stages of expansion.Comment: 18 pages, 6 figures, AASTeX, to appear in Nov 1 issue of ApJ (vol 543), postscript versions of Figures 3 and 5 are available at http://crux.astr.ua.edu/~rosen/supcon/rh.htm
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